3-(Bromomethyl)-2-cyano-4-(trifluoromethoxy)pyridine-6-carboxylic acid
4-(Chloromethyl)-2-cyano-3-methoxy-6-(trifluoromethoxy)pyridine
2-Chloro-6-(chloromethyl)-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine
3-(Chloromethyl)-5-cyano-6-methoxy-2-(trifluoromethoxy)pyridine